CONSOLIDATED STATEMENTS OF INCOME (Unaudited) (USD $) Share data in Millions, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Revenues
Natural gas sales	$ 938,900,000	$ 965,700,000	$ 2,594,900,000	$ 2,831,300,000
Services	780,100,000	758,700,000	2,317,600,000	2,248,900,000
Product sales and other	476,100,000	335,600,000	1,294,700,000	1,070,900,000
Total Revenues	2,195,100,000	2,060,000,000	6,207,200,000	6,151,100,000
Operating Costs, Expenses and Other
Gas purchases and other costs of sales	942,500,000	964,600,000	2,641,500,000	2,829,200,000
Operations and maintenance	411,800,000	328,300,000	1,199,900,000	1,098,700,000
Depreciation, Depletion and Amortization, Nonproduction	253,400,000	224,100,000	704,600,000	674,600,000
General and administrative	100,500,000	93,600,000	387,100,000	288,100,000
Taxes, other than income taxes	38,900,000	41,900,000	140,800,000	128,100,000
Other expense (income)	(900,000)	200,000	(14,900,000)	(6,400,000)
Total Operating Costs, Expenses and Other	1,746,200,000	1,652,700,000	5,059,000,000	5,012,300,000
Operating Income	448,900,000	407,300,000	1,148,200,000	1,138,800,000
Other Income (Expense)
Earnings from equity investments	72,600,000	53,700,000	213,900,000	155,600,000
Amortization of excess cost of investments	(1,800,000)	(1,400,000)	(4,900,000)	(4,300,000)
Interest expense	(133,400,000)	(134,000,000)	(395,600,000)	(374,900,000)
Interest income	6,300,000	5,000,000	17,400,000	17,500,000
Loss on remeasurement of previously held equity interest in KinderHawk	(167,200,000)	0	(167,200,000)	0
Other, net	3,100,000	5,400,000	11,100,000	9,800,000
Total Other Income (Expense)	(220,400,000)	(71,300,000)	(325,300,000)	(196,300,000)
Income Before Income Taxes	228,500,000	336,000,000	822,900,000	942,500,000
Income Taxes	(12,200,000)	(13,600,000)	(33,800,000)	(27,600,000)
Net Income	216,300,000	322,400,000	789,100,000	914,900,000
Net Income Attributable to Noncontrolling Interests	(1,800,000)	(1,600,000)	(6,300,000)	(7,600,000)
Net Income Attributable to Kinder Morgan Energy Partners, L.P.	214,500,000	320,800,000	782,800,000	907,300,000
Calculation of Limited Partners' Interest in Net Income (Loss)
Net Income Attributable to Kinder Morgan Energy Partners, L.P.	214,500,000	320,800,000	782,800,000	907,300,000
Less: General Partner's interest	(298,200,000)	(267,300,000)	(871,000,000)	(609,000,000)
Limited Partners' Interest in Net Income (Loss)	(83,700,000)	53,500,000	(88,200,000)	298,300,000
Limited Partners' Net Income (Loss) per Unit	$ (0.25)	$ 0.17	$ (0.27)	$ 0.98
Weighted Average Number of Units Used in Computation of Limited Partners' Net Income (Loss) per Unit	331.1	310.7	323.3	304.7
Per Unit Cash Distribution Declared	$ 1.16	$ 1.11	$ 3.45	$ 3.27